Would you believe it?

Q What are some of the longest lifespans in fish? A Technically the longest lifespan lies with the Greenland shark, which live a staggering 250-plus years – perhaps even more than 500, in some cases.

Q What is the coldest winter the UK has experienced? A In more recent times the Met Office points to the winter of 1963, which was the coldest since 1740, with temperatures dropping to as low as -20°C

From big birthdays and celebrity babies to British politics and Booker Prizes, test your knowledge with these 40 tricky teasers

While the original National Folklore Survey from the 1960s was unscientific and open ended, simply asking random people “what do you know to be true?”, its 21st century successor is a very different b

Our round-up of the funny, fascinating and unusual stories this fortnight

Quiz of the week 1) Name the BBC’s ...